#include<stdio.h>;
#include<conio.h>;
#include<iostream>;
using namespace std;
class CRectangle {
	int width,height;
public:
	CRectangle (int ,int);
	int area();
};
CRectangle::CRectangle(int a,int b){
	width=a;
	height=b;
}
int CRectangle::area(){
	return (width*height);
}
int main(){
	CRectangle recta(3,4);
	CRectangle rectb(5,6);
	cout<<"area a:"<<recta.area();
	cout<<"\narea b:"<<rectb.area();
	getch();
}
